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9-2Šª
”N�F
1994”N
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1273-1278•Å
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Œf�ÚŽGŽ��i‰p�j�F
PROCEEDINGS OF THE JAPAN EARTHQUAKE ENGINEERING SYMPOSIUM
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Osamu KIYOMIYA, Roushi OJIMA, Jyunichi TAKEMURA
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SEISMLC-DESIGN OF IMMERSED TUNNEL CONSIDERING OF NON-LINEARITY OF FLEXIBLE JOINT
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Flexible joints between immersed tunnel elements play an important role on earthquake resistance of the immersed tunnel. In conventional seismic design, flexible joints are replaced by linear springs. However, this model is not enough to estimate the ultimate strength and deformation of the flexible joints that has material non-linear properties. In this paper, new calculation model considered the material non-linearity of the rubber gasket is introduced for multi mass-spring model. Calculation is carried out for Ohasaka Nankou Immersed Tunnel to investigate the difference of results between linear model and non-linear model.
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